机器学习中Python环境的配置问题

机器学习中Python环境的配置问题

      现如今，Python在人工智能领域已经应用的很广泛了。它具有很强的实用性，并且具有丰富的工具库。比如常用的：Numpy、Pandas、Matplotlib、Scikit-Learn、tensorflow等。Tensorflow是深度学习的框架，相信大家也比较熟悉。如果在windows环境下安装Tensorflow，想必也会遇到很多的问题。如何更好的用Python编写机器学习或者深度学习的案例，配置相应的环境是必不可少的。接下来，我主要介绍一下在配置环境中可能遇到的问题，希望可以帮助各位。

1.Anaconda的使用技巧（修改Notebook默认打开的文件夹路径 ）

（1）打开 cmd 输入命令 jupyter notebook --generate-config

（2）查看生成的文件夹

(3)打开配置文件，找到如下的那一行，删除前面的# ，填写自己的路径

（4）修改成功。

2.Tensorflow的安装

安装Tensorflow也出现了很多问题，在Anaconda下，我们直接使用pip install tensorflow命令安装即可。安装完成后，用import命令测试，一直显示ImportError: No module named tensorflow。之后我又重新安装了一下。

(d:\Anaconda3) C:\Users\lenovo>pip install tensorflow
Collecting tensorflow
  Using cached tensorflow-1.5.0-cp35-cp35m-win_amd64.whl
Requirement already satisfied (use --upgrade to upgrade): six>=1.10.0 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.12.1 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): absl-py>=0.1.6 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): protobuf>=3.4.0 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): wheel>=0.26 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): tensorflow-tensorboard<1.6.0,>=1.5.0 in d:\anaconda3\lib\site-packages (from tensorflow)
Requirement already satisfied (use --upgrade to upgrade): setuptools in d:\anaconda3\lib\site-packages\setuptools-27.2.0-py3.5.egg (from protobuf>=3.4.0->tensorflow)
Requirement already satisfied (use --upgrade to upgrade): werkzeug>=0.11.10 in d:\anaconda3\lib\site-packages (from tensorflow-tensorboard<1.6.0,>=1.5.0->tensorflow)
Requirement already satisfied (use --upgrade to upgrade): bleach==1.5.0 in d:\anaconda3\lib\site-packages (from tensorflow-tensorboard<1.6.0,>=1.5.0->tensorflow)
Requirement already satisfied (use --upgrade to upgrade): html5lib==0.9999999 in d:\anaconda3\lib\site-packages (from tensorflow-tensorboard<1.6.0,>=1.5.0->tensorflow)
Requirement already satisfied (use --upgrade to upgrade): markdown>=2.6.8 in d:\anaconda3\lib\site-packages (from tensorflow-tensorboard<1.6.0,>=1.5.0->tensorflow)
Installing collected packages: tensorflow
Successfully installed tensorflow-1.5.0
You are using pip version 8.1.2, however version 9.0.1 is available.

You should consider upgrading via the 'python -m pip install --upgrade pip' command.

提示是pip版本的问题。因此，更新pip版本。

(d:\Anaconda3) C:\Users\lenovo>python -m  pip install --upgrade pip

重新安装tensorflow，成功。